public CodegenExpression CodegenDateTime(
CodegenExpression dateTime,
CodegenMethodScope codegenMethodScope,
ExprForgeCodegenSymbol exprSymbol,
CodegenClassScope codegenClassScope)
{
return CalendarPlusMinusForgeOp.CodegenDateTime(
this,
dateTime,
codegenMethodScope,
exprSymbol,
codegenClassScope);
}
public static CalendarOpPlusFastAddResult ComputeNextDue(
long currentTime,
TimePeriod timePeriod,
DateTimeEx reference,
TimeAbacus timeAbacus,
long remainder)
{
if (timeAbacus.DateTimeGet(reference, remainder) > currentTime) {
return new CalendarOpPlusFastAddResult(0, reference);
}
// add one time period
DateTimeEx work = reference.Clone();
if (DEBUG && Log.IsDebugEnabled) {
Log.Debug("Work date is " + work);
}
CalendarPlusMinusForgeOp.ActionSafeOverflow(work, 1, timePeriod);
long inMillis = timeAbacus.DateTimeGet(work, remainder);
if (inMillis > currentTime) {
return new CalendarOpPlusFastAddResult(1, work);
}
if (DEBUG && Log.IsDebugEnabled) {
Log.Debug("Work date is {0}", work);
}
long factor = 1;
// determine multiplier
long refTime = timeAbacus.DateTimeGet(reference, remainder);
long deltaCurrentToStart = currentTime - refTime;
long deltaAddedOne = timeAbacus.DateTimeGet(work, remainder) - refTime;
double multiplierDbl = (deltaCurrentToStart / deltaAddedOne) - 1;
var multiplierRoundedLong = (long) multiplierDbl;
// handle integer max
while (multiplierRoundedLong > Int32.MaxValue) {
CalendarPlusMinusForgeOp.ActionSafeOverflow(work, Int32.MaxValue, timePeriod);
factor += Int32.MaxValue;
multiplierRoundedLong -= Int32.MaxValue;
if (DEBUG && Log.IsDebugEnabled) {
Log.Debug("Work date is {0} factor {1}", work, factor);
}
}
// add
var multiplierRoundedInt = (int) multiplierRoundedLong;
CalendarPlusMinusForgeOp.ActionSafeOverflow(work, multiplierRoundedInt, timePeriod);
factor += multiplierRoundedInt;
// if below, add more
if (timeAbacus.DateTimeGet(work, remainder) <= currentTime) {
while (timeAbacus.DateTimeGet(work, remainder) <= currentTime) {
CalendarPlusMinusForgeOp.ActionSafeOverflow(work, 1, timePeriod);
factor += 1;
if (DEBUG && Log.IsDebugEnabled) {
Log.Debug("Work date is {0} factor {1}", work, factor);
}
}
return new CalendarOpPlusFastAddResult(factor, work);
}
// we are over
while (timeAbacus.DateTimeGet(work, remainder) > currentTime) {
CalendarPlusMinusForgeOp.ActionSafeOverflow(work, -1, timePeriod);
factor -= 1;
if (DEBUG && Log.IsDebugEnabled) {
Log.Debug("Work date is {0} factor {1}", work, factor);
}
}
CalendarPlusMinusForgeOp.ActionSafeOverflow(work, 1, timePeriod);
if (DEBUG && Log.IsDebugEnabled) {
Log.Debug("Work date is {0} factor {1}", work, factor);
}
return new CalendarOpPlusFastAddResult(factor + 1, work);
}